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Home > Forums > Chemical Engineers > Activities > Chemical engineering other topics Forum

CO analyser for hydrogen stream (PSA)

Read More Threads Like This One

sfacchin (Chemical)

31 May 12 8:11

Please,
can someone indicates a CO analyzer for a high purity hydrogen stream (product of a PSA unit)?
The resolution needed is in the ppm level.
Thanks

MortenA (Petroleum)

31 May 12 8:18

Perhaps our good friends at air liquide can help you? Or the vendor of you PSA in general?

RaRo (Chemical)

15 Jun 12 8:17

Maybe simple gas photometry (infrared) could be used. You can easily get something between 1 to 5ppm resolution.

moltenmetal (Chemical)

15 Jun 12 11:30

Be careful, as some of the methods for CO have a STRONG cross-sensitivity to hydrogen. Lots of people do this measurement though- just get good references before you buy anything.

EdStainless (Materials)

7 Jul 12 7:23

Try Servomex. I am not sure about this combination but they build some very good gas analyzers.

= = = = = = = = = = = = = = = = = = = =
Plymouth Tube

DRWeig (Electrical)

7 Jul 12 13:41

I vote for the infrared absorption type. I'm pretty sure GE Sensing has one. No cross-sensitivity issues.

Good on ya,

Goober Dave

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